naruse	2018-07-04 19:59:36 +0900 (Wed, 04 Jul 2018)

  New Revision: 63849

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=63849

  Log:
    Revert "Optimize Time.utc"
    
    This reverts commit r63848.
    It breaks tests.

  Modified files:
    trunk/time.c
Index: time.c
===================================================================
--- time.c	(revision 63848)
+++ time.c	(revision 63849)
@@ -1095,9 +1095,6 @@ init_leap_second_info(void) https://github.com/ruby/ruby/blob/trunk/time.c#L1095
         timew = timegmw_noleapsecond(&vtm);
 
         number_of_leap_seconds_known = NUM2INT(w2v(wsub(TIMET2WV(known_leap_seconds_limit), rb_time_unmagnify(timew))));
-        if (number_of_leap_seconds_known == 0) {
-            known_leap_seconds_limit = 0;
-        }
     }
 }
 

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